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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b00772
|2 doi
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|a eng
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|a Salazar, Christian
|e verfasserin
|4 aut
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|a STM Study of Au(111) Surface-Grafted Paramagnetic Macrocyclic Complexes [Ni2L(Hmba)](+) via Ambidentate Coligands
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|c 2016
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 18.05.2018
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|a Date Revised 18.05.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Molecular anchoring and electronic properties of macrocyclic complexes fixed on gold surfaces have been investigated mainly by using scanning tunnelling microscopy (STM) and complemented with X-ray photoelectron spectroscopy (XPS). Exchange-coupled macrocyclic complexes [Ni2L(Hmba)](+) were deposited via 4-mercaptobenzoate ligands on the surface of a Au(111) single crystal from a mM solution of the perchlorate salt [Ni2L(Hmba)]ClO4 in dichloromethane. The combined results from STM and XPS show the formation of large monolayers anchored via Au-S bonds with a height of about 1.5 nm. Two apparent granular structures are visible: one related to the dinickel molecular complexes (cationic structures) and a second one related to the counterions ClO4(-) which stabilize the monolayer. No type of short and long-range order is observed. STM tip-interaction with the monolayer reveals higher degradation after 8 h of measurement. Spectroscopy measurements suggest a gap of about 2.5 eV between HOMO and LUMO of the cationic structures and smaller gap in the areas related to the anionic structures
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Lach, Jochen
|e verfasserin
|4 aut
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|a Rückerl, Florian
|e verfasserin
|4 aut
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1 |
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|a Baumann, Danny
|e verfasserin
|4 aut
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|a Schimmel, Sebastian
|e verfasserin
|4 aut
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|a Knupfer, Martin
|e verfasserin
|4 aut
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|a Kersting, Berthold
|e verfasserin
|4 aut
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|a Büchner, Bernd
|e verfasserin
|4 aut
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|a Hess, Christian
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 18 vom: 10. Mai, Seite 4464-71
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:32
|g year:2016
|g number:18
|g day:10
|g month:05
|g pages:4464-71
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|u http://dx.doi.org/10.1021/acs.langmuir.6b00772
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